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EP0623707A2
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Levelling apparatus for attaching to an attachment frame on the front of a selfpropelled vehicle
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CH673092A5
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Training device for winter sports - has roller mounted foot supports incorporating free wheels permitting sideways swing in alternate directions
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DE3420210A1
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Device for laying and/or levelling cross-country ski runs
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CH649333A5
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Machine for tracking and planning ski loipes or ski slopes.
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ATA488279A
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Tracking and / or planing device for ski countries or slopes
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DE2639687A1
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Track making sledge for long distance skiing - is fitted with rake to wipe out track in selected places
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CA1019147A
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Long distance ski track-ploughing device
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